HT6550A Datasheet Super I/O Controller

Manufacturer: Holtek Microelectronics

HT6550A super i/o controller by Holtek Microelectronics - Datasheet Preview

Datasheet Details

Part number	HT6550A
Manufacturer	Holtek Microelectronics
File Size	436.20 KB
Description	Super I/O Controller
Download	HT6550A Download (PDF)

General Description

The HT6550A super Multi I/O chip, is an advanced CMOS single chip controller offering the complete I/O solutions for the IBM AT environments.

It incorporates one floppy disk controller (FDC), two full function UARTs, one parallel port, one bus mouse port, one game port controller, IDE hard disk drive interface, standard AT address decoding for on-chip function and four configuration registers in one chip.

It is fabricated with HOLTEK’s high-reliability CMOS technology.

Overview

HT6550A Super I/O Controller.

Key Features

100% compatible to IBM PC AT.
Fully uPD765b and IBM.
BIOS compatible floppy disk controller.
48mA floppy drive interface buffers.
Support two floppy drives with capability of supporting up to four drives with an external decoder.
Support 360K/720K/1.2M/1.44M formats.
Support 250Kb/s, 300Kb/s, 500Kb/s data rate.
Digital data separator eliminates critical analog adjustments.
Two 16450/8250 compatible UARTs.
In.

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